悠闲数学娱乐论坛(第3版)»论坛 › 数学区 › 初等数学讨论 › 四面体外接球和内切球半径的不等式

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[几何] 四面体外接球和内切球半径的不等式

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lihpb Post time 2023-11-9 21:59 |Read mode

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